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🍂 First Frost Dates for Campo, California 91906

A 36°F frost is always a risk here. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 12. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Campo, CA are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

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What is a First Frost Date?

The first fall frost signals the end of your local growing season. This date serves as an important deadline for gardeners and farmers. You'll need to complete harvesting before this point. Annuals and other tender plants will die back when frost hits, and perennial plants will enter their dormant phase for winter. Meanwhile, it's time to enjoy a cup of hot cocoa and a cozy sweater—and start planning your spring garden!

How to use the First Frost Date?

Watch your local weather forecasts in early fall to predict the first frost date. Harvest tender crops and protect vulnerable plants before frost arrives. For late-summer plantings, count backward from your area's average first frost date. This ensures your crops have enough time to mature. Keep track of when frost actually occurs in your garden each year. This helps you identify protected spots where the growing season might last longer.

First Frost Date Probabilities

Probability of frost (36°F) on or before...
10% chancealways
20% chancealways
30% chancealways
40% chancealways
50% chancealways
60% chancealways
70% chancealways
80% chancealways
90% chancealways
Probability of light freeze (32°F) on or before...
10% chanceSep 27
20% chanceOct 4
30% chanceOct 12
40% chanceOct 17
50% chanceOct 23
60% chanceOct 27
70% chanceNov 1
80% chanceNov 5
90% chanceNov 11
Probability of moderate freeze (28°F) on or before...
10% chanceOct 20
20% chanceOct 29
30% chanceNov 4
40% chanceNov 8
50% chanceNov 13
60% chanceNov 18
70% chanceNov 23
80% chanceNov 29
90% chanceDec 4
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 9
20% chanceNov 19
30% chanceNov 28
40% chanceDec 1
50% chanceDec 4
60% chanceDec 8
70% chanceDec 13
80% chanceDec 19
90% chanceDec 30
Probability of hard freeze (20°F) on or before...
10% chanceDec 1
20% chanceDec 7
30% chanceDec 13
40% chanceDec 19
50% chanceDec 25
60% chanceDec 31
70% chanceJan 6
80% chanceJan 18
90% chanceFeb 6
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 14
20% chanceDec 26
30% chanceJan 1
40% chanceJan 5
50% chanceJan 10
60% chanceJan 16
70% chanceFeb 1
80% chanceFeb 7
90% chanceFeb 17

Agricultural climatic data from weather station: CAMPO (USW00003164)

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